74911797 has 48 divisors (see below), whose sum is σ = 117656448. Its totient is φ = 47589120.

The previous prime is 74911787. The next prime is 74911799. The reversal of 74911797 is 79711947.

It is not a de Polignac number, because 74911797 - 2¹⁵ = 74879029 is a prime.

It is a super-2 number, since 2×74911797² = 11223554659538418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74911799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 727248 + ... + 727350.

It is an arithmetic number, because the mean of its divisors is an integer number (2451176).

Almost surely, 2^74911797 is an apocalyptic number.

It is an amenable number.

74911797 is a deficient number, since it is larger than the sum of its proper divisors (42744651).

74911797 is a wasteful number, since it uses less digits than its factorization.

74911797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 220 counting only the distinct ones).

The product of its digits is 111132, while the sum is 45.

The square root of 74911797 is about 8655.1601371667. The cubic root of 74911797 is about 421.5509493762.

The spelling of 74911797 in words is "seventy-four million, nine hundred eleven thousand, seven hundred ninety-seven".